0 like 0 dislike
3.1k views
正三角形的面積公式是[4分之根號3乘a平方],請設計一個程式,讓使用者輸入正三角形的邊長,然後輸出正三角形的面積,輸出時請輸出並四捨五入到小數點後兩位。

範例輸入:

8

範例輸出:

21.71
[Normal] Coding (C) - asked in 2016-1 程式設計(一)AC by (18k points)
ID: 13422 - Available when: Unlimited - Due to: Unlimited
3 flags | 3.1k views
0 0
Called for Help

35 Answers

0 like 0 dislike
Hidden content!
#include<stdio.h>
**** * ** *** *

int main()

{
* ** *** *** ** ** * a;
* ** ***** * * * * ** * A;
** * *** ** *** ** * ** * * * ** * **** &a);
*** * * ** **** * * ** ** ** * *
*** * ** * ** * **** ** * * * ** * *
* **** ** ****** **
** * * * ** ******* ** * * 0;
* * ** **** ** * *

}
answered by (-124 points)
0 like 0 dislike
Hidden content!
*** * *** *
** * * *** *





 int main ()

{
*** **** * **** ** ** * **** ** * * a,b;
* * * * **** * ** * ******* * **** * * ** * * * &a);


* * * ** * **** *** * * * * ** *** = sqrtf(3)/4*(a*a);


**** ***** * * *** *** * **** * *** *


* * *** * * * ** 0;

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
* * ** *** * ** *
* **** ** ** ** * * ** **



 main()

{
** ** ***** *** ***


* * * * ** ** * * * *** ** * * *


** ** * * *




* ** * * * ****** *

}
answered by (-383 points)
0 like 0 dislike
Hidden content!
* *** * * * ** *
** * * * **** * *
** ** * ***** **

int main()

{

float *
* ** * * *** ** ** ***

b = * * * * *
* *** * * ** ** *






** * * * ** system * ** * * * * ***
* ** ***** return 0;
* * **
answered by (-136 points)
0 like 0 dislike
Hidden content!
* ** ** *** ** **
* * * * *
**** ** * ****** ****





int main(){


** ** ** ** **** * * * i, a, j;
** * * ** **** *** *** **** *** * ** * **


* * *** * * * * ** = sqrt(3) / 4;


*** ** ** * * ** = i * (a * a);


******* * *** *** * *** *** j);



return 0;

}
answered by (-105 points)
0 like 0 dislike
Hidden content!
* **** ***** *
** ** * * * * *





 int main ()

{
* ** * * * ** * ** * * a,b;
** ** ****** *** *** ** * * * **** ** * ** * &a);


** * **** ****** * ** ***** = sqrtf(3)/4*(a*a);


* **** * * * *** * * ** *** * * * * *


** * * * ** * **** 0;

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
* * ******** * *
* *** * * * *





 int main ()

{
**** * * * * * *** *** a,b;
** ** ** * * * **** ** * ** ** ** * ** **** ** ** &a);


** * ** * ***** * * * * = sqrt(3)/4*(a*a);


* *** * **** * * **** ** * * *** ****


** * * ** **** * 0;

}
answered by (-143 points)
0 like 0 dislike
Hidden content!
#include ** ** *

#include ** * * * * ***

#include ** ** **



int main()

{
** ** * *** ** * ** * a;
* * ** * * ******** *** ** *** **** **
* * * * *** ****** * * ** ** **** *** ** ****
*** * * ** ** * * * ** *** 0;

}
answered by (-85 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

int main()

{
** * *** *** a;
* * *** ** ** * ** ** * area;
* ** ******** * **** *
* ** * *** * * ******* ******** * *** * *
** ** * * * * * ** *** ***** * *
** * * * **** * **** ********* *

 }
answered by (-124 points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

#include **** ** * *****

#include <math.h>

int main()

{
****** ** * *** * *** ** a, b;
** **** ******* * * * * ** ** ** ** * ****
* * * * **** ** *** * * *****
* **** ** ***** * ** * ** * **** * **
* ***** ***** * * **** * *** ** * *
* * * * * * * **** *** ****** 0;
*** * ** ** ***
answered by (-122 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.17.148
©2016-2025

Related questions

0 like 0 dislike
43 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13025 - Available when: Unlimited - Due to: Unlimited
| 3.8k views
0 like 0 dislike
49 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13023 - Available when: Unlimited - Due to: Unlimited
| 4.4k views
0 like 0 dislike
39 answers
[Normal] Coding (C) - asked Oct 11, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 13020 - Available when: Unlimited - Due to: Unlimited
| 3.6k views
0 like 0 dislike
7 answers
[Exercise] Coding (C) - asked Oct 27, 2016 in 2016-1 程式設計(一)AC by Shun-Po (18k points)
ID: 15399 - Available when: 2016-10-27 18:30:00 - Due to: 2016-10-27 21:00:00
| 1.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users